PasswordBox + MVVM

Though, it seems like there should be a cleaner way to handle this, does anyone know of a cleaner way to handle the issue of getting the password from a password box while maintaining the MVVM approach. I don't need to actually bind the password to a property,
but if I can pass it in as a command parameter that would be the most ideal.

With the hack method I am binding to a property, which for some reason has it's updatetrigger to propertychanged and can't be overridden. As well, this workaround also forces you to specify the Mode=TwoWay instead of defaulting to it.